#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.Collections;
using Newtonsoft.Utilities.Miscellaneous;
using Newtonsoft.Utilities.Reflection;
using System.Linq;

namespace Newtonsoft.Utilities.Collections
{
  public static class EnumerableUtils
  {
    /// <summary>
    /// Creates an enumerable from a creator with the specified count.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="itemCreator">The item creator.</param>
    /// <param name="count">The count.</param>
    /// <returns></returns>
    public static IEnumerable<T> Create<T>(Creator<T> itemCreator, int count)
    {
      ValidationUtils.ArgumentNotNull(itemCreator, "itemCreator");
      ValidationUtils.ArgumentNotNegative<int>(count, "count");

      for (int i = 0; i < count; i++)
      {
        yield return itemCreator();
      }
    }

    public static IEnumerable<int> Times(int times)
    {
      for (int i = 1; i <= times; i++)
      {
        yield return i;
      }
    }

    //public static bool IsNullOrEmptyOrDefault<T>(this IEnumerable<T> enumerable)
    //{
    //  if (IsNullOrEmpty(enumerable))
    //    return true;

    //  return ReflectionUtils.ItemsUninitializedValue(enumerable.ToList());
    //}
  }
}